Species · Oklahoma · BBS 2025 Release · 1966–2024
Yellow-crowned Night Heron Population Trend in Oklahoma
Yellow-crowned Night Heron in Oklahoma has fallen sharply: down 54% on the route-weighted index since 1969.
-54%Since 1969
23Routes In State
41Years
Notable Yellow-crowned Night Heron Trends in Oklahoma
long arc declinecomputed index
Yellow-crowned Night Heron has fallen sharply in Oklahoma: down 54% on the route-weighted index since 1969.
Yellow-crowned Night Heron Population Forecast in Oklahoma
If the recent trend holds, Yellow-crowned Night Heron in Oklahoma is projected to stay roughly flat through 2028, near 0.04 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±55.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.04Projected 2028 index
0.00–0.1395% range
±55.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.05 | 0.00 | 0.14 |
| 2025 | 0.05 | 0.00 | 0.14 |
| 2026 | 0.04 | 0.00 | 0.14 |
| 2027 | 0.04 | 0.00 | 0.13 |
| 2028 | 0.04 | 0.00 | 0.13 |
Yellow-crowned Night Heron Survey Routes in Oklahoma
| Choctaw | 3 | 1996 | 1986 |
| Bartlesville | 3 | 1994 | 1994 |
| Big Cedar | 1 | 2015 | 2015 |
| Blanco | 1 | 1975 | 1975 |
| Phillips | 1 | 2006 | 1991 |
| Mill Creek | 1 | 2016 | 2004 |
| Loco | 1 | 1976 | 1976 |
| Ardmore | 1 | 2008 | 1970 |
| Randlett | 1 | 1968 | 1968 |
| Cookietown | 1 | 2006 | 1970 |
| Reed | 1 | 1982 | 1974 |
| Baron | 1 | 2003 | 1999 |
| Canadian | 1 | 2006 | 1987 |
| Holdenville | 1 | 2023 | 1981 |
| Noble | 1 | 2008 | 1997 |
| Verden | 1 | 1970 | 1967 |
| Erick | 1 | 1997 | 1975 |
| Douglas | 1 | 1976 | 1976 |
| Colony | 1 | 1995 | 1995 |
| Goodwater | 1 | 2017 | 1995 |
| Matoy | 1 | 1995 | 1995 |
| Tatums | 1 | 2009 | 1998 |
| Pocola | 1 | 2007 | 2002 |
Yellow-crowned Night Heron Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.